OpsCenter 4.0 User Guide

Configuring data collection and expiration

OpsCenter collects system and column family metrics data for each node in your cluster.

OpsCenter creates its own keyspace within a cluster for storing collected metrics. This data
can also be stored on a cluster other than the one currently being managed by OpsCenter.
Metrics data is collected at regular intervals and stored within your cluster in a keyspace
called OpsCenter. The column families containing metric data continue to grow. You can
configure how long you want to keep historical metrics. Data expires after configurable time
periods.